Analysis

  • max time kernel
    3s
  • max time network
    59s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    25-08-2024 00:04

General

  • Target

    6c73bff74c556614eac6924cf5ef2cf0N.exe

  • Size

    2.0MB

  • MD5

    6c73bff74c556614eac6924cf5ef2cf0

  • SHA1

    60cc889f6dfc699fa074292ecf9c4b6dde194e37

  • SHA256

    27b3199ec7d50a5b57ad568d9f4a9734c94f95e4765820698ef5fd5c9e2f7937

  • SHA512

    e5f4fe737e25cbf66d743ce886dd488768b679467f6f650191e1fc68eb77a921a1ca331800ca67f7ae0d20c8c3f84a199f3e6d47b8db4a19eb5d77c74fd76996

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYp:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y/

Malware Config

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

Extracted

Family

quasar

Version

1.3.0.0

Botnet

EbayProfiles

C2

5.8.88.191:443

sockartek.icu:443

Mutex

QSR_MUTEX_0kBRNrRz5TDLEQouI0

Attributes
  • encryption_key

    MWhG6wsClMX8aJM2CVXT

  • install_name

    winsock.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    win defender run

  • subdirectory

    SubDir

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 5 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 13 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6c73bff74c556614eac6924cf5ef2cf0N.exe
    "C:\Users\Admin\AppData\Local\Temp\6c73bff74c556614eac6924cf5ef2cf0N.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2540
    • C:\Users\Admin\AppData\Local\Temp\vnc.exe
      "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3068
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k
        3⤵
          PID:2992
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3068 -s 160
          3⤵
          • Loads dropped DLL
          • Program crash
          PID:2632
      • C:\Users\Admin\AppData\Local\Temp\windef.exe
        "C:\Users\Admin\AppData\Local\Temp\windef.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2900
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1528
        • C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:1884
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1448
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\HYL5E0LNu5ND.bat" "
            4⤵
              PID:3040
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:1756
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:604
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1884 -s 1488
                4⤵
                • Program crash
                PID:2428
          • C:\Users\Admin\AppData\Local\Temp\6c73bff74c556614eac6924cf5ef2cf0N.exe
            "C:\Users\Admin\AppData\Local\Temp\6c73bff74c556614eac6924cf5ef2cf0N.exe"
            2⤵
            • System Location Discovery: System Language Discovery
            PID:2828
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
            2⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:2732
        • C:\Windows\system32\taskeng.exe
          taskeng.exe {12C09E49-7855-43A1-B4DF-F61EFE6563D5} S-1-5-21-3502430532-24693940-2469786940-1000:PSBQWFYT\Admin:Interactive:[1]
          1⤵
            PID:2408
            • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
              2⤵
                PID:1108
                • C:\Users\Admin\AppData\Local\Temp\vnc.exe
                  "C:\Users\Admin\AppData\Local\Temp\vnc.exe"
                  3⤵
                    PID:1960
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k
                      4⤵
                        PID:2960
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 160
                        4⤵
                        • Program crash
                        PID:792
                    • C:\Users\Admin\AppData\Local\Temp\windef.exe
                      "C:\Users\Admin\AppData\Local\Temp\windef.exe"
                      3⤵
                        PID:2908
                      • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe
                        "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"
                        3⤵
                          PID:2784
                        • C:\Windows\SysWOW64\schtasks.exe
                          "C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F
                          3⤵
                          • Scheduled Task/Job: Scheduled Task
                          PID:444

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\Local\Temp\HYL5E0LNu5ND.bat

                      Filesize

                      208B

                      MD5

                      685d0fd5c03ebc5ce2ee1d2daf48178b

                      SHA1

                      1bbb21046dae3e122d4136160ec213cc413b4828

                      SHA256

                      d244e439ff2c090df6cec4d97ba94c3059fda60603a7f855af1891b02d21450b

                      SHA512

                      8fb88e3457773cb048a1b3a175a15b68440696d5c1c2cf42d3b9ef1907411585f7f7d98ade7004f242b8ee0a0b0269623d6f6a9f4ec8eaff1dd14a9c4c427a0e

                    • C:\Users\Admin\AppData\Local\Temp\vnc.exe

                      Filesize

                      405KB

                      MD5

                      b8ba87ee4c3fc085a2fed0d839aadce1

                      SHA1

                      b3a2e3256406330e8b1779199bb2b9865122d766

                      SHA256

                      4e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4

                      SHA512

                      7a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2

                    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\IJT50F66.txt

                      Filesize

                      211B

                      MD5

                      889a7c3aaeaac63654f555ac6768842f

                      SHA1

                      724ffaea040fb6616eb07df91b7a94998fe50909

                      SHA256

                      3c0e852d5e2b9b45033f89ec1ce50f28866cc3ba818410f3ee53092072a490f7

                      SHA512

                      5c8a859d18e98fc1bb4f84c9d0e252ed827cbc2fddc86941e63aeac879e3a42a336b124285d945286877daad3e01f8a9bd4be961a888238b7320cb3d25906ca7

                    • C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe

                      Filesize

                      2.0MB

                      MD5

                      2ba9eea2d6ef79a245f4420be82dea23

                      SHA1

                      c1296080e6b1c895c25027a256da6ca723feb74e

                      SHA256

                      ba34dc2b4fab7955689f9ae6922e0563c54c328a51bd3b1bad5a1e1b2a6effaa

                      SHA512

                      674d013f8f0bd1e34bd296b8e0c5c7b04b22407f3b6016de4bc284d6fd904e45cef6378869b5ed2bc60926116205fa4db975c095c53977fb2ad445c7c861fdd5

                    • \Users\Admin\AppData\Local\Temp\windef.exe

                      Filesize

                      349KB

                      MD5

                      b4a202e03d4135484d0e730173abcc72

                      SHA1

                      01b30014545ea526c15a60931d676f9392ea0c70

                      SHA256

                      7050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9

                      SHA512

                      632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb

                    • memory/1884-57-0x0000000000C20000-0x0000000000C7E000-memory.dmp

                      Filesize

                      376KB

                    • memory/2540-28-0x0000000000E90000-0x0000000000E91000-memory.dmp

                      Filesize

                      4KB

                    • memory/2784-90-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2828-29-0x00000000000C0000-0x00000000000E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2828-30-0x00000000000C0000-0x00000000000E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2828-36-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

                      Filesize

                      4KB

                    • memory/2828-40-0x00000000000C0000-0x00000000000E0000-memory.dmp

                      Filesize

                      128KB

                    • memory/2900-45-0x0000000000CD0000-0x0000000000D2E000-memory.dmp

                      Filesize

                      376KB

                    • memory/2908-84-0x0000000000BA0000-0x0000000000BFE000-memory.dmp

                      Filesize

                      376KB